Summoner feels really, really dumbed down now

[mathias-merodach]

You still have your Ruin IV blasts during Bahamut. Its called Astral Impulse.

That is not the same thing. Astral Impulse is an order for Bahamut to attack. Previously, Bahamut would attack each time you cast a spell. Built up Ruin 4 stacks, and Ruin 2 when you had none, were used to attack and do more damage yourself while also having Bahamut attack more times. Now, that interaction between yourself and Bahamut is gone.